Protective case for pneumatic tires.



L. DAN. PROTECTIVE CASE FOR PNEUMATIC TIRES. APPLICATION FILED FEB. 7, 1913.

1,086,653. I Patented Feb.10,1914.

WI T N58858: lAll/E/VTOR 7 Lung Dan A TTORNEY LUNG DAN, 0F PORTLAND, OREGON.

rno'rncrrvn cnsn son PNEUMATIC Trans.

I Specification of Letters Patent.

Patented Feb. 10, 1914.

Application filed February 7, 191 3. Seria-1No.-746,972-

T 0 all i ihom it may concern.

Be it known that l, LUNG Dan, a citizen of the Republic of China, and a resident of Portland, Multnomah county, Stateof Oregon, have invented a new and useful Improvement in Protective Cases for ,Pneumatic Tires, of which the following is a specification.

This invention relates generally to means for protecting pneumatic tires from the wear and tear due to service. It a well known tact that the life of the pneumatic tire'is comparativelyshort, and that the cost of tire renewals and repair is a most important item in the ultimate cost ot' an automobile."

The object ot my invention is, therefore, to provide a case to be placed on pneumatic tires, which will sustain the wear and tear that would normally "tall upon the tire itself, which will increase the tractive power of the wheel upon which it is used, and which will prevent skidding.

To this end my invention comprises a construction of parts which will provide a flexible 'iroteetive covering or case, and

means whereby the same may be readily attached to tires of ditl'erent diameters.

The construction and manner of application of my invention is hereinafter fully set forth.

In the accompanying drawings: Figure 1. is a side elevation of an automobile wheel with my invention applied thereto; Fig. 2

is a larger-scale plan or top view of a section of the tire casing, showing the details of construction of the various parts and their tleXible connections; Fig. 3 shows on a still larger-scale plan a detail of one of the tread plates; Fig. 4 is a side elevation of the clamping device whereby my tire protector,

after being placed on a tire, may be tight ened thereon and clamped firmly in place;

and Fig. 5 is a vertical section taken approximately on the line 5 5 of Fig. 4.

Thebody of my protective case consists of j trally positioned external rim-spikes Zr,

which will give to the tire an efiicient grip on the surface'of the road-bed, and in so doing the spikes in will also serve to prevent said tire fromskidding.

A series of Wire links, 6, flexibly connect the various tread plates, (1, and maintain the latter in their relative positions with respect to each other. Said series of parallel tread plates are arranged in annular form and they are connected on one side to a cable 0. On the latter are placed loose rings a, and the plates, a, adjacent to the cable are flexibly connected to such rings 6 by links 9; this arrangement permits the links 9 to adjust themselves. On the opposite side of my protective case is provided a cable f, on which are placed loose rings m. The tread plates, a, adjacent to the cable f are fastened to said rings, m, by links 9, thus providing a limited movement of the parts so united during the operation of applying my protective case to the tire. The ends of the cable f are adj'ustably fastened together by means of a speci'al cable clamping device H. Such locking device consists of a clampplate It to which is jointed the end f of the cable f. Two holes are provided in the plate h at 2", for inserting the legs of a U-bolt. The leg 2' of said U'bolt is threaded and a winged nut j is secured thereon; the other or free end f of said cable f is passed through the eye formed by the curved portion of the U-bolt. While in the drawing the device H is shown in connection with the cable, f, only, it is to be understood that the same means are provided for adjustably fastening together the ends of the cablec.

T 0 promote the strength, and at the same time the flexibility, of my protective case, and the convenience with which it may be applied to a tire, the tread plates a of the alternating courses are tied to longitudinally extending supplemental links, Z, Z, as shown in Fig. 2. Said supplemental links, I, are fastened to the course of tread plates, a. The inner contiguous ends of the supplemental links Z are formed with eyes, 012/,

connected by rings a. To each of the eyes, m, of the links, I, are fastened transverse links 0, connected at their opposite ends to the contiguous tread plates (11,.

In applying my invention to a vehicle tire, the body of my protective case is, in the first instance, arranged onthe tread of the tire, or in other words, peripherally. The cable, 0, is then drawn taut, and when so arranged the nut y' of its clamping device is screwed up tight, thereby clamping the free end of the cable in place; then the same procedure is followed in adjusting and tightening the other cable. In applying my protective case to, the tire care must of course betaken to s'o arrange the protective case that the spikes is will project exteriorly. The spikes in not only promote traction contact with the road sin-face, but also prolong the life of the tread plates, especially of those arranged circumferentially on the crown of the tire, since here is imposed the hardest wear. The application of my protective case to a Wheel tire is facilitated and rendered convenient by the fact that the protective casing is flexible and adapted to yield in all directions. To this feature the links connecting the tread plates with each other and to the cables materially contribute.

I claim: v

1. A protective casing for pneumatic tires and the like consisting of a body made of a plurality of tread-plates arranged in singgered relation, links connecting the corners ofvthe tread-plates; cables adapted for placing at the sides of the tire; loose rings on such cables; links inserted through said rings; links connecting the extremities of said links with the corners of the adjacent, alternate tread plates; supplemental jointed links arranged longitudinally and parallel to said cables; such supplemental links connecting the corners of the alternate courses .of the tread-plates; transversely arranged links tying the lateral members of the other alternate courses of tread plates to said supplemental links; and means for adjustably fastening the cable ends together.

2. A protective casing for pneumatic tires and the like consisting of a body made of a plurality of tread-plates arranged in staggered relation; links connecting the corners of the tread-plates; said tread-plates made with exterior ground spikes; cables adapt- 1 ed for placing at the sides of the tire; loose rings on such cables; links inserted through said rings; links connecting the extremities of said links with the corners of adjacent, alternate tread plates; supplemental links arranged longitudinally and parallel to said cables; such supplemental links connecting the corners-of the alternate courses of the tread plates; such supplemental links consisting of two members formed with eyes at their inner or. contiguous ends, sucheyes located in transverse alinement with alternate courses of tread-plates; rings connecting the eyes of the supplemental links; transversely arranged links tying the lateral members of the other alternate courses oil tread plates to said supplemental links; and

means for adjustably fastening the cable ends together.

LUNG DAN. Witnesses:

WM. 0. SOHMITT, CECIL Lone. 

